A power supply device includes: a first high-voltage line for exchanging the electric power externally; a second high-voltage line for applying current flowing in a direction opposite to the first high-voltage line; a plurality of batteries; a plurality of SUs, the SUs being provided corresponding to the respective batteries, switching a connection state of the batteries to the first high-voltage line, and being disposed in a circle; and an SCU that controls the SUs. The SU can switch between a first state in which the battery corresponding to the SU is connected in series to the first high-voltage line and a second state in which the battery is not connected to the first high-voltage line. The SCU controls the SUs to switch to the first state or the second state in accordance with a voltage of the electric power to be charged and discharged.
Legal claims defining the scope of protection, as filed with the USPTO.
4. The power supply device according to claim 3, wherein the positive electrode power lines and the positive electrode reverse power lines are configured by shielded wires including the positive electrode power lines and the positive electrode reverse power lines as core wires.
5. The power supply device according to claim 1, wherein the first power line and the second power line are twisted together between the switching units adjacent to each other.
6. The power supply device according to claim 1, wherein the switching units adjacent to each other are connected by a return path line in addition to the first power line and the second power line.
7. The power supply device according to claim 1, wherein the switching units adjacent to each other are connected by a shielded wire including the first power line and the second power line as core wires.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
October 18, 2021
July 2, 2024
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